3978400

素因数分解:

$2^5\times 5^2\times {\mathrm{4973}}^1$

素因数の和:4993

約数の個数: 36

約数和(自身を含む): 9714222

約数和(自身を除く): 5735822

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 4973, 9946, 19892, 24865, 39784, 49730, 79568, 99460, 124325, 159136, 198920, 248650, 397840, 497300, 795680, 994600, 1989200, 3978400]

約数ペア:

[(1, 3978400), (2, 1989200), (4, 994600), (5, 795680), (8, 497300), (10, 397840), (16, 248650), (20, 198920), (25, 159136), (32, 124325), (40, 99460), (50, 79568), (80, 49730), (100, 39784), (160, 24865), (200, 19892), (400, 9946), (800, 4973)]